Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantos touchdowns houve com uma classificação de QB de 66,6?
 ###Tabelas: CREATE TABLE top_league_table (top_league_table_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Order VARCHAR, Played INT, Drawn INT, Lost INT, Penalties INT, Points For INT, Points Against INT, Points Diff INT, Coach VARCHAR) CREATE TABLE southern_railway_batch (southern_railway_batch_id AUTO_INCREMENT PRIMARY KEY, BRNo. INT, SRNo. VARCHAR, Name VARCHAR, Builder VARCHAR, Whenbuilt VARCHAR, Withdrawn VARCHAR) CREATE TABLE jersey_progress_chart (jersey_progress_chart_id AUTO_INCREMENT PRIMARY KEY, Stage (Winner) VARCHAR, General Classification Yellow Jersey VARCHAR, Mountains Classification Green Jersey VARCHAR, Points Classification Navy Blue Jersey VARCHAR, Intermediate Sprints Classification Red Jersey VARCHAR, Team Classification VARCHAR) CREATE TABLE team_career_passing_records (team_career_passing_records_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Completions INT, Attempts INT, Completion % VARCHAR, Yards INT, Touchdowns INT, Interceptions INT, QB Rating VARCHAR) CREATE TABLE 2008_season (2008_season_id AUTO_INCREMENT PRIMARY KEY, SF Round INT, Country VARCHAR, Location VARCHAR, Date VARCHAR, Driver VARCHAR, Race 1(pts) INT, Race 2(pts) INT, Race Total(pts) INT)  
SELECT Touchdowns FROM team_career_passing_records WHERE QB Rating = 66.6